Evaluation of Consistency of PDX Model for Predicting Therapeutic Effect of Gastric Cancer (NCT05616533) | Clinical Trial Compass
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Evaluation of Consistency of PDX Model for Predicting Therapeutic Effect of Gastric Cancer
China50 participantsStarted 2023-09-12
Plain-language summary
The goal of this study is to compare the tumor response in gastric cancer patients given neoadjuvant chemotherapy with the corresponding result obtained from zebrafish patient-derived tumor xenograft(PDX) model given the same regimen. The main question it aims to answer is whether this PDX model of zebrafish could accurately predict the effect of chemotherapy in advanced gastric cancer. Participants will be given the standard neoadjuvant treatment administrated by their own doctors and tumor response will be observed and recorded. Meanwhile, tumor samples derived from patients before chemotherapy will be transplanted to zebrafish and the same regimen will be given to the PDX models correspondingly. The tumor response data both from clinical practice and PDX model platform will be analysed and compared to evaluate the power of this zebrafish model platform in drug efficiency prediction.
Who can participate
Age range
18 Years – 75 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. patients aged 18-75years,
. patients with gastric cancer confirmed by histology or cytology at first visit,
. patients with advanced tumor by imaging evaluation,
. patients with preoperative neoadjuvant therapy;
. Eastern Cooperative Oncology Group (ECOG) physical status score of 0 or 1;
. tolerance to chemotherapy in laboratory examination;
. hematology examination: no obvious signs of hematological diseases, ANC ≥1.5 × 109/L before enrollment; Platelet count ≥80 × 109/L, HB ≥90 g/L, WBC ≥3.0 × 109/L, and no bleeding tendency;
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
The coincidence rate of tumor response obtained from 50 PDX models with clinical real tumor response acquired from corresponding patients received neoadjuvant therapy.
Timeframe: about 3 months (from the first cycle of neoadjuvant therapy to the surgery)
. biochemical examination: Total Bilirubin \<1.5 times of upper limit of normal value, AST, ALT \< 2.5 times of upper limit of normal value, creatinine \< 1.5 times of upper limit of normal value;
Exclusion criteria
. patients with inoperable advanced gastric cancer,
. patients with metastatic or primary gastric cancer,
. pregnant or lactating women,
. patients with a history of other malignancies in the last 5 years;
. for those with a history of uncontrolled epilepsy, central nervous system disease or mental disorders, the severity of the clinical condition was assessed by the investigator as impeding the signing of informed consent or affecting the patient's compliance with oral medication;
. clinically serious (i.e. active) heart disease, such as symptomatic coronary heart disease, NYHA Class II or more heart failure, or arrhythmias requiring medical intervention; Or a history of myocardial infarction within the last 12 months;
. severe diabetes-related complications, such as diabetic nephropathy, diabetic ketosis, etc.
. gastrointestinal obstruction or abnormal physiological function, or malabsorption syndrome, which may affect drug absorption;